Patents Assigned to Fraunhofer
  • Patent number: 11971605
    Abstract: A mirror support for an optical mirror and a method for producing an optical mirror are disclosed. In an embodiment a mirror support includes a mirror body comprising a diamond particle reinforced aluminum composite material and a polishing layer arranged on the mirror body, wherein a content of diamond particles in the aluminum composite material is between 5% by mass and 50% by mass inclusive and is selected such that a thermal coefficient of linear expansion of the mirror body is adapted to a thermal coefficient of linear expansion of the polishing layer.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: April 30, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Jan Kinast, Stefan Risse
  • Patent number: 11973961
    Abstract: A decoder for block-based decoding of picture data of a picture is configured to decode a current block of the picture by determining first and second sets of luma in a neighborhood of the current block, the first set of luma samples having smaller luma values than the second set of luma samples, fitting a straight-line having a linear function through first and second pairs of luma-chroma samples, wherein the first and second pairs of luma-chroma samples are determined based on the first and second sets of luma samples, respectively, and on first and second corresponding chroma samples, respectively, in said neighborhood of the current block, and predicting chroma samples of the current block using luma samples of the current block and said linear function. The present proposal further concerns a respective encoder and corresponding methods for encoding and decoding.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: April 30, 2024
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
    Inventors: Christian Helmrich, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
  • Patent number: 11973549
    Abstract: A receiver processes a radio signal received via a radio channel from a transmitter employing a plurality of antenna ports, determines complex precoder coefficients and delays of one or more space-delay precoders for one or more transmission layers and antenna ports at the transmitter so as to achieve a predefined property for a communication over the radio channel, and feeds back, explicitly or implicitly, delays and the complex precoder. The space-delay precoder has a dual-stage structure having a spatial codebook matrix including spatial beamforming vectors, a frequency-domain codebook matrix, and a combining element per layer for complex scaling or combining one or more of the vectors selected from the spatial and/or frequency-domain codebook matrices. The frequency-domain codebook matrix is defined by a sub-matrix of a DFT matrix, which the sub-matrix of the DFT matrix is associated with a range of delay values.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: April 30, 2024
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
    Inventors: Venkatesh Ramireddy, Markus Landmann, Marcus Großmann
  • Patent number: 11969730
    Abstract: Disclosed is an apparatus for the sensor-based examination of biological cells, comprising at least one well, wherein the at least one well has (a) an opening; (b) a planar base; (c) at least one sensor for the examination of biological cells, wherein the at least one sensor is arranged on the base of the at least one well; and (d) a medium for cryopreservation, with the medium for cryopreservation comprising biological cells and contacting a surface of the at least one sensor, wherein the medium for cryopreservation, which comprises the biological cells, is present in a frozen state.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 30, 2024
    Assignees: Universität Regensburg, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Joachim Wegener, Stefanie Michaelis
  • Patent number: 11973978
    Abstract: Decoder for block-based decoding of a picture from a data stream, configured to decode an intra-coding mode for a predetermined block of the picture from the data stream, configured to decode a partition dimension flag for the predetermined block of the picture from the data stream and set a partition dimension depending on the partition dimension flag to be horizontal or vertical and the decoder is configured to partition, along the predetermined dimension, the predetermined block into transform partitions which are as wide as the predetermined block perpendicular to predetermined dimension, furthermore configured to decode, for each transform partition, a transform of a prediction residual from the data stream; intra-predicting the predetermined block depending on one or more already reconstructed samples neighboring the predetermined block in a manner depending on the intra-coding mode to obtain a predictor for the predetermined block; and reconstructing the predetermined block by correcting the predictor
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: April 30, 2024
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Santiago De Luxán Hernández, Benjamin Bross, Phan Hoang Tung Nguyen, Valeri George, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
  • Patent number: 11973383
    Abstract: The present application creates a roller molding method for producing a spiral structure or a coil, in particular a spiral structure for use in electric machines, wherein material is supplied between a first roller and a second roller running opposite thereto, wherein the first roller has first teeth, and the second roller has second teeth, said first and/or second teeth having tooth flanks with cavities for receiving the supplied material, wherein the teeth are designed and aligned such that the cavity of at least one tooth is at least temporarily delimited by the surface of a tooth of the other roller when the rollers are rotating such that the supplied material is molded between the teeth into a portion of the spiral structure or the coil.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: April 30, 2024
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Matthias Busse, Franz-Josef Wöstmann
  • Patent number: 11968399
    Abstract: Video codec concepts which allows more effective video composition/merging and/or a more effective implementation of gradual decoding refresh are described along with concepts of allowing video composition/merging being more effective, for instance, in terms of complexity of the composition/merging task.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: April 23, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Robert Skupin, Yago Sánchez De La Fuente, Cornelius Hellge, Thomas Schierl, Karsten Suehring, Thomas Wiegand
  • Patent number: 11967868
    Abstract: The invention relates to a method for producing a helical metal body (1, 1?), in particular made of aluminum or an aluminum alloy. A blank is first produced in a primary shaping process, a metal forming process, or in a removal process, in particular a machining process, and one or more recesses (100, 101, 201, 202, 203) are then introduced into the blank using a removal process, said recesses defining a circumferential coil, the adjacent windings thereof being mutually spaced, in particular electrically insulated from one another.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: April 23, 2024
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Matthias Busse, Franz-Josef Wöstmann
  • Publication number: 20240128708
    Abstract: A radiation source includes an initial source, a non-linear optical frequency converter, a conversion detector and a controller. The controller is arranged such that in a first mode of operation, the controller generates the conversion control signal in dependence on the conversion measurement signal such that the resonance frequency is controlled to follow the initial centre frequency. The controller is selectably switchable between the first mode of operation and a second mode of operation. In the second operating mode the power of the converted radiation is controlled such that either the power of the converted radiation has a smaller relative variation over time than the power of the initial radiation in the beam direction in front of the coupling mirror or the power of the initial radiation in the beam direction behind the coupling mirror has a smaller relative variation over time than the power of the initial radiation in the beam direction in front of the coupling mirror.
    Type: Application
    Filed: October 12, 2023
    Publication date: April 18, 2024
    Applicants: HÜBNER GmbH & Co. KG, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Jens KIESSLING, Maik-Hendrik SCHUBERT, Marius Horst Jürgen WENDEROTH, Korbinian HENS
  • Publication number: 20240129011
    Abstract: The present disclosure relates to methods and apparatuses (UE, network node or gNB) for CSI reporting. The method performed by a UE comprises: receiving from the gNB, a radio signal via a MIMO channel, wherein the radio signal contains at least one DL-RS according to a DL-RS configuration; estimating said MIMO channel based on said received at least one DL reference signal for configured subbands; calculating a precoder matrix or a CSI matrix for a number of antenna ports of the gNB and configured subbands; the precoder matrix based on a first codebook and on a second codebook and a set of combining coefficients for complex scaling/combining one or more of vectors selected from the first codebook and the second codebook; and reporting, to the gNB, a CSI feedback report and/or a PMI/RI, used to indicate the precoder matrix or the CSI matrix for the configured antenna ports and subbands.
    Type: Application
    Filed: December 4, 2023
    Publication date: April 18, 2024
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: VENKATESH RAMIREDDY, Marcus Grossmann, Markus Landmann
  • Patent number: 11962813
    Abstract: Interpolation between explicitly signaled CPB (or HRD) parameters at selected bit rates is used to achieve a good compromise between CPB parameter transmission capacity and CPB parametrization effectiveness and may be, particularly, made in an effective manner.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: April 16, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Yago Sánchez De La Fuente, Benjamin Bross, Robert Skupin, Cornelius Hellge, Thomas Schierl, Thomas Wiegand
  • Patent number: 11962833
    Abstract: A source device for providing audio data and video data on one or more digital media interfaces is described, wherein the source device is configured to automatically adjust a time alignment between a provision of audio data and a provision of video data based on an information about a latency of an audio path and based on an information about a latency of a video path.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: April 16, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Kraegeloh, Thomas Heller, Rinat Zeh, Herbert Thoma
  • Patent number: 11962765
    Abstract: An apparatus for video decoding according to an embodiment is provided. The apparatus is configured to receive a video data stream having pictures of a video encoded thereinto. The video data stream comprises a plurality of access units, a plurality of SEI (supplemental enhancement information) messages and processing order information which defines a processing order of the plurality of SEI messages. The apparatus is configured to determine the processing order information to obtain information on the processing order of the plurality of SEI messages. The processing order information comprises information on an identifier for each SEI message of two or more SEI messages of the plurality of SEI messages, wherein the identifier of each SEI message of the two or more SEI messages is unique among the two or more SEI messages.
    Type: Grant
    Filed: October 5, 2023
    Date of Patent: April 16, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Yago Sánchez De La Fuente, Benjamin Bross, Robert Skupin, Cornelius Hellge, Thomas Schierl, Thomas Wiegand, Detlev Marpe
  • Patent number: 11961530
    Abstract: An apparatus for decoding data segments representing a time-domain data stream, a data segment being encoded in the time domain or in the frequency domain, a data segment being encoded in the frequency domain having successive blocks of data representing successive and overlapping blocks of time-domain data samples. The apparatus includes a time-domain decoder for decoding a data segment being encoded in the time domain and a processor for processing the data segment being encoded in the frequency domain and output data of the time-domain decoder to obtain overlapping time-domain data blocks. The apparatus further includes an overlap/add-combiner for combining the overlapping time-domain data blocks to obtain a decoded data segment of the time-domain data stream.
    Type: Grant
    Filed: January 10, 2023
    Date of Patent: April 16, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
    Inventors: Ralf Geiger, Max Neuendorf, Yoshikazu Yokotani, Nikolaus Rettelbach, Juergen Herre, Stefan Geyersberger
  • Patent number: 11961531
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: April 16, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
  • Patent number: 11962812
    Abstract: Interpolation between explicitly signaled CPB (or HRD) parameters at selected bit rates is used to achieve a good compromise between CPB parameter transmission capacity and CPB parametrization effectiveness and may be, particularly, made in an effective manner.
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: April 16, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Yago Sánchez De La Fuente, Benjamin Bross, Robert Skupin, Cornelius Hellge, Thomas Schierl, Thomas Wiegand
  • Publication number: 20240115139
    Abstract: A method for determining a concentration of a target gas in blood of a human or animal animate being. The method includes the steps of: generating electromagnetic excitation radiation having a carrier frequency, wherein the carrier frequency is selected such that the target gas and an absorbing gas absorb the excitation radiation, modulating an amplitude or the carrier frequency of the excitation radiation with a modulation frequency, illuminating an absorption path superficial to a skin of the animate being with the excitation radiation, generating a sound wave by an absorption of the excitation radiation in the absorption gas, and detecting at least one of an amplitude and a phase of the sound wave as a measure of a concentration of the target gas on the absorption path. Also provided is a photoacoustic sensor for determining a concentration of a target gas in blood of a human or animal animate being.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 11, 2024
    Applicants: Albert-Ludwigs-Universität Freiburg, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Johannes KAPP, Katrin SCHMITT, Christian WEBER, Jürgen WÖLLENSTEIN, Hassan YASSINE
  • Patent number: 11955792
    Abstract: A method for protecting at least a part of a network segment of an electrical power distribution network has: detecting voltage dips at the intermediate feeding devices of the line arrangements by the voltage dip detection devices; generating and feeding an electrical signal into the line arrangement by the signal generating device at each intermediate feeding device at which one of the voltage dips is detected, the electrical signals having frequencies different from a network frequency of the network segment; receiving the electrical signals via the line arrangements by the receiving devices of the line protection devices; detecting electrical faults on the line arrangement using the electrical signals received by the triggering device of the respective line protection device; and triggering the disconnecting device of the line protection device of the line arrangement, where an electric fault is detected, by the triggering device so that the line arrangement is electrically disconnected from the further el
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: April 9, 2024
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Wolfram Heckmann, Philipp STRAUß
  • Patent number: 11956429
    Abstract: Block-based coding of a picture is rendered more effective by providing an intra-prediction coding concept according to which a certain block of the picture is intra-prediction coded using a certain intra-coding mode by partitioning the predetermined block into partitions along a certain dimension with the number of partitions being greater than two and/or the partitions being one sample wide along the certain dimension with the partitions being, for reconstruction purposes, sequentially subject to spatial prediction using the intra-prediction coding mode signaled for the certain block followed by correcting the thus obtained predictor using a prediction residual so that for preceding partitions a reconstruction of the samples is available to the decoder at the time of processing the next, then current, partition. Signaling overhead with respect to the partitioning may be left off or may be kept low.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: April 9, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Santiago De Luxán Hernández, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
  • Patent number: 11955131
    Abstract: An apparatus for encoding a multi-channel signal having at least three channels includes an iteration processor, a channel encoder and an output interface. The iteration processor is configured to calculate inter-channel correlation values between each pair of the at least three channels, for selecting a pair including a highest value or including a value above a threshold, and for processing the selected pair using a multi-channel processing operation to derive first multi-channel parameters for the selected pair and to derive first processed channels. The iteration processor is configured to perform the calculating, the selecting and the processing using at least one of the processed channels to derive second multi-channel parameters and second processed channels. The channel encoder is configured to encode channels resulting from an iteration processing to obtain encoded channels.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: April 9, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Dick, Florian Schuh, Nikolaus Rettelbach, Tobias Schwegler, Richard Fueg, Johannes Hilpert, Matthias Neusinger